Results 11 to 20 of about 154,036 (328)

Neocatastrophism and the Milky Way Astrobiological Landscape [PDF]

Serbian Astronomical Journal, 2008
The number and distribution of habitable planets in the Milky Way is one of the foremost problems of contemporary astrobiological research. We investigate the effects of applying general neocatastrophic paradigm to the evolution of the Galactic Habitable
Vukotić, B., Ćirković, M. M.
doaj   +3 more sources

The observed spiral structure of the Milky Way [PDF]

, 2014
The spiral structure of the Milky Way is not yet well determined. The keys to understanding this structure are to increase the number of reliable spiral tracers and to determine their distances as accurately as possible.
Han, J. L., Hou, L. G.
core   +1 more source

The Role of Mass and Environment on Satellite Distributions around Milky Way Analogs in the Romulus25 Simulation

The Astrophysical Journal, 2023
We study satellite counts and quenched fractions for satellites of Milky Way analogs in Romulus25 , a large-volume cosmological hydrodynamic simulation.
Jordan Van Nest, Ferah Munshi, Charlotte Christensen, Alyson M. Brooks, Michael Tremmel, Thomas R. Quinn   +5 more
doaj   +1 more source

Chemodynamical simulations of the Milky Way galaxy [PDF]

, 2011
We present chemodynamical simulations of a Milky-Way-type galaxy using a self-consistent hydrodynamical code that includes supernova feedback and chemical enrichment, and predict the spatial distribution of elements from oxygen to zinc.
Kobayashi, Chiaki, Nakasato, Naohito
core   +3 more sources

Weighing the Milky Way

, 2002
We describe an experiment to measure the mass of the Milky Way galaxy. The experiment is based on calculated light travel times along orthogonal directions in the Schwarzschild metric of the Galactic center. We show that the difference is proportional to
Angelo Tartaglia, Ashby N, Ashfaque H Bokhari, Boyer R H, Dicke R M, Gron Ø, Hay H J, Krisher T P, Manasse F K, Martin J L, Moreau W, Munawar Karim, Ohanian H C, Synge J L, Taylor C T   +14 more
core   +1 more source

Planetary nebulae in the inner Milky Way [PDF]

, 2009
New abundances of planetary nebulae located towards the bulge of the Galaxy are derived based on observations made at LNA (Brazil). We present accurate abundances of the elements He, N, S, O, Ar, and Ne for 56 PNe located towards the galactic bulge.
Chiappini, Costa, Cuisinier, Escudero, Oscar Cavichia, Roberto D. D. Costa, Smartt, Walter J. Maciel   +7 more
core   +1 more source

Dust Emissivity Variations In the Milky Way [PDF]

, 2009
Dust properties appear to vary according to the environment in which the dust evolves. Previous observational indications of these variations in the FIR and submm spectral range are scarce and limited to specific regions of the sky.
Abergel, Abergel, Allamandola, Bacmann, Bazell, Bennett, Bernard, Boulanger, Boulanger, C. Mény, Cambrésy, Cambrésy, Cambrésy, Caselli, D. Paradis, Dale, Dame, Delabrouille, Dickey, Draine, Draine, Dupac, Désert, Finkbeiner, Fixsen, Fixsen, J.-Ph. Bernard, Kemper, Lagache, Laureijs, Laureijs, Laureijs, Macias-Perez, Magnani, Mathis, Mény, Puget, Stepnik, Stepnik, Strong, Tielens, Tielens, Tristram, Van de Bult   +43 more
core   +3 more sources

Outer Regions of the Milky Way

, 2017
With the start of the Gaia era, the time has come to address the major challenge of deriving the star formation history and evolution of the disk of our MilkyWay. Here we review our present knowledge of the outer regions of the Milky Way disk population.
A. Toomre, B.F. Burke, C.C. Lin, G. Westerhout, H.C. Harris, H.J. Rocha-Pinto, I. García-Ruiz, J. Binney, J.A. Sellwood, O.J. Eggen, P.A. Patsis, P.C. Kruit van der   +11 more
core   +1 more source

The Milky Way’s Rowdy Neighbors: The Effects of the Large Magellanic Cloud and Sagittarius Dwarf on the Milky Way Disk

The Astrophysical Journal
The Milky Way (MW) is a barred spiral galaxy shaped by tidal interactions with its satellites. The Large Magellanic Cloud (LMC) and the Sagittarius dwarf galaxy (Sgr) are the dominant influences at the present day. This paper presents a suite of four 10 ^
Ioana A. Stelea, Jason A. S. Hunt, Kathryn V. Johnston   +2 more
doaj   +1 more source

What Does the Milky Way Look Like?

The Astrophysical Journal, 2023
In spite of much work, the overall spiral structure morphology of the Milky Way remains somewhat uncertain. In the last two decades, accurate distance measurements have provided us with an opportunity to solve this issue.
Y. Xu, C. J. Hao, D. J. Liu, Z. H. Lin, S. B. Bian, L. G. Hou, J. J. Li, Y. J. Li   +7 more
doaj   +1 more source